- 您现在的位置：买卖IC网 > PDF目录14520 > MIC2238-G4YML TR (Micrel Inc)IC REG BUCK SYNC 0.8A DL 12MLF PDF资料下载
参数资料
| 型号： | MIC2238-G4YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 0.8A DL 12MLF |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 2 |
| 输出电压： | 1.2V，1.8V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2.5MHz |
| 电流 - 输出： | 800mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-VFDFN 裸露焊盘，12-MLF? |
| 包装： | 标准包装 |
| 供应商设备封装： | 12-MLF?（4x4） |
| 产品目录页面： | 1092 (CN2011-ZH PDF) |
| 其它名称： | 576-3279-6 |
MIC2238
2.5MHz Dual Phase
PWM Buck Regulator
General Description
Features
The Micrel MIC2238 is dual output 2-phase synchronous
buck (step down) PWM DC/DC switching regulator. Power
conversion efficiencies of above 95% are easily obtainable
for a wide range of applications and loads. An ultra-low
quiescent current of 28μA at light loads assures minimum
current draw in battery powered applications that require
standby modes. The 2.5MHz PWM operation of MIC2238
allows the use of miniature 1μH, 2.2μH or 4.7μH inductor
with the use of 2.2μF ceramic output capacitor.
The MIC2238 operates from 2.5V to 5.5V input and is
available in fixed output voltage versions to save space
and reduce external component count. The MIC2238-AA’s
(adjustable version) output voltage versions can be
programmed as low as 0.8V
?
?
?
?
?
?
?
?
?
?
?
Input voltage range: 2.5V to 5.5V
Dual output voltages running out of phase
28μA quiescent current
Fixed output voltage versions
Adjustable version down to 0.8V
Low noise 2.5MHz PWM operation
800mA output current capability for each channel
Stable with 2.2μH inductor, 2.2μF ceramic cap
Automatic switching into light load mode of operation
/FPWM pin allows low noise all-PWM mode operation
Power good output with internal 5μA current source
allows sequencing with programmable delay time
For applications that require the lowest noise performance,
the /FPWM pin allows the automatic Trickle mode to be
disabled, remaining in full PWM mode. To maximize
battery life in low-dropout conditions, MIC2238 can
operate with a maximum duty cycle of 100%.
The MIC2238 is available in a space-saving 3mm x 3mm
MLF ? -12L package with a junction temperature range from
-40 ° C to +125 ° C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
? Internal soft-start
? 1 μ A shutdown current
? Built-in soft-start circuitry
? Current limit protection
? Pb-Free 3mm x 3mm MLF ? -12L package
Applications
? Cellular phones
? PDAs
? Digital Cameras
? MP3 Players
___________________________________________________________________________________________________________
Typical Application
MLF and Micr oLead Frame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
April 2010
M9999-040810-C
相关PDF资料 |
PDF描述 |
|---|---|
| HSM15DRYH-S13 | CONN EDGECARD 30POS .156 EXTEND |
| HMM15DRYH-S13 | CONN EDGECARD 30POS .156 EXTEND |
| ESM18DRYI-S13 | CONN EDGECARD 36POS .156 EXTEND |
| RSM18DTKS | CONN EDGECARD 36POS DIP .156 SLD |
| RSM22DRUN | CONN EDGECARD 44POS DIP .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2238-GF9YML | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2.5MHz Dual Phase PWM Buck Regulator |
| MIC2238-GFHYML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
| MIC2238-GFHYML TR | 功能描述:直流/直流开关调节器 High Efficiency Dual 800/800mA Buck Switcher RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MIC2238-GFHYML-TR | 功能描述:Buck Switching Regulator IC Positive Fixed 1.575V, 1.8V 2 Output 800mA 12-VFDFN Exposed Pad, 12-MLF? 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 功能:降压 输出配置:正 拓扑:降压 输出类型:固定 输出数:2 电压 - 输入（最小值）:2.5V 电压 - 输入（最大值）:5.5V 电压 - 输出（最小值/固定）:1.575V，1.8V 电压 - 输出（最大值）:- 电流 - 输出:800mA 频率 - 开关:2.5MHz 同步整流器:是 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:12-VFDFN 裸焊盘，12-MLF? 供应商器件封装:12-MLF?（4x4） 标准包装:1 |
| MIC2238-GSYML | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2.5MHz Dual Phase PWM Buck Regulator |
发布紧急采购，3分钟左右您将得到回复。